<font-awesome-icon icon="fa-brands fa-bandcamp" />
<FontAwesomeIcon icon="fa-brands fa-bandcamp" />
.my-icon::before {
font: var(--fa-font-brands);
content: "\f2d5";
}
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" style="width: 30px;height: 30px;fill: black">
<path d="M256 8C119 8 8 119 8 256S119 504 256 504 504 393 504 256 393 8 256 8zm48.2 326.1h-181L207.9 178h181z"/>
</svg>
<i class="fa-brands fa-bandcamp"></i>